The lock and key model is used to explain how enzymes work. Use the model to explain why an enzyme only works with a particular molecule.

What is the formula that this ionic compounds could form sr2+p3-o2-

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?